Fixed-bed column studies on the removal of Fe3+ and neural network modelling

The ANN approach seems to be completely suitable to the problems where the relations between variables are not linear and complex. The input variables to the neural network are as follows: pH, the sorption time (t), the concentration of initial Fe3+, bed depth (B.D.), flow rate (F) and particle size (P.S.) and. Feo3+ concentration as a function of reaction time was chosen as the experimental response or output variable.124